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. 2020 Sep 30;17(170):20200556. doi: 10.1098/rsif.2020.0556

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© 2020 The Authors.

Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Figure 8. — Equations of the three DDE model, published by Schmal et al. [31]. The equations describe the gene expression dynamics of Per, Bmal1 and RevErb (equations 1–3), using delay-differential equations. Parameter values used for numerical simulations are provided in figure 3b.